Book/Report FZJ-2018-00575

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Characterization of stepped surfaces by low energy electron diffraction

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1975
Kernforschungsanlage Jülich, Verlag Jülich

Jülich : Kernforschungsanlage Jülich, Verlag, Berichte der Kernforschungsanlage Jülich 1257, 26 p. ()

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Report No.: Juel-1257

Abstract: Low energy electron diffraction (LEED) provides information on characteristic data of stepped surfaces i.e. step height, terrace width and step orientation. This report gives the derivation of some pertinent expressions which relate measured values from experimental LEED studies to the desired quantities characterizing step structures. The derived expressions have been applied to LEED results obtained for stepped tungsten surfaces. The step height can be obtained within an error of $\pm$ 1 %. Terrace width can be deduced with an accuracy of 1 % to 3 % depending on the seize of the width. The orientation of the surface normal of stepped surfaces can be determined at least as accurate as by the conventional Laue back reflection technique.


Contributing Institute(s):
  1. Publikationen vor 2000 (PRE-2000)
Research Program(s):
  1. 899 - ohne Topic (POF3-899) (POF3-899)

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 Record created 2018-01-18, last modified 2021-01-29